Product Overview
The GE PSTX250-600-70 is a high-performance softstarter engineered for medium to large three-phase motors. With a rated operational current of 250 A and an operating voltage range of 208...600 V AC, it delivers smooth, controlled starts and stops. The PSTX250-600-70 integrates a built-in bypass for energy savings and simplified installation, making it a robust choice for industrial automation applications.
Key Technical Specifications
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Rated Operational Voltage: 208...600 V AC
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Rated Control Supply Voltage (Us): 100...250 V AC
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Rated Control Circuit Voltage (Uc): 24 V DC
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Rated Frequency: 50/60 Hz
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Rated Operational Current (In-Line): 250 A
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Rated Operational Current (Inside Delta): 430 A
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Rated Operational Power (In-Line): 75 kW @ 230 V, 132 kW @ 400 V, 160 kW @ 500 V
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Rated Operational Power (Inside Delta): 132 kW @ 230 V, 220 kW @ 400 V, 295 kW @ 500 V
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Starting Capacity: 4xIe for 10 s
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Ramp Time: 1...120 s
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Initial Voltage During Start: 10...99%
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Current Limit Function: 1.5...7.5 xIe
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Analog Outputs: 0…10 V, 0…20 mA, 4…20 mA
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Communication: Modbus-RTU, Modbus-TCP, Ethernet-IP, EtherCAT, DeviceNet, CANopen, Profibus, Profinet, BACnet-IP, BACnet-MSTP
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Degree of Protection: Main Terminals IP00
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Product Net Weight: 15.5 kg
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Dimensions (W x H x D): 258 x 470 x 279 mm
Advanced Protection and Control
The PSTX250-600-70 comes with a comprehensive suite of protection functions, including electronic overload, current imbalance, earth fault, phase reversal, and voltage imbalance protection. It also offers warnings for overvoltage, undervoltage, locked rotor, and thyristor overload. These features help prevent costly downtime and equipment damage.
Flexible Integration and Communication
This softstarter supports multiple fieldbus protocols, enabling seamless integration into existing automation networks. The built-in Modbus RTU and optional ANYBUS modules allow connection to Profinet, Profibus, Modbus TCP, Ethernet IP, and more. A detachable full graphic display with IP66 rating provides intuitive local control and diagnostics.
Applications and Benefits
Typical applications include pumps, fans, compressors, and conveyors. The PSTX250-600-70 excels in demanding environments, offering features like pump cleaning, motor heating, and emergency/fire pump mode. Its energy-saving bypass and reliable performance reduce operational costs and extend motor life.
Installation and Maintenance
Installation is straightforward with bar-type main terminals and a hole diameter of 10.2 mm for connections. The unit operates in ambient temperatures from -25 °C to +60 °C and stores from -40 °C to +70 °C. Regular inspection of connections and cooling ensures long service life.
Selection Guide
When selecting a softstarter, verify the motor's full-load current and voltage to match the PSTX250-600-70's ratings. Ensure the control voltage (100...250 V AC) and frequency (50/60 Hz) align with your supply. For detailed specifications or assistance, PLC Source PRO offers expert support and genuine parts.